html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike,
strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody,
tfoot, thead, tr, th, td ,textarea,input { margin:0; padding:0;  }
address,cite,dfn,em,var, i {font-style:normal;}
body {font-size: 16px; line-height: 1.5; font-family:'Microsoft Yahei','simsun','arial','tahoma';  color: #222; background: #ffffff; min-width: 300px; overflow-y: scroll;}
table { border-collapse:collapse; border-spacing:0; }
h1, h2, h3, h4, h5, h6, th { font-size: 100%; font-weight: normal; }
button,input,select,textarea{font-size:100%;}
fieldset,img{border:0;}
a { text-decoration: none; color: #666; background: none }
ul, ol { list-style: none; }
:focus{ outline:none;}
.clearfix:after,.clearfix:before{
  content: "";
  display: table;
}
.clearfix:after{
  clear: both;
}
.clearfix{
  *zoom: 1;
}
.fl{ float: left; }
.fr{float: right;}
input:-webkit-autofill {
    background-color: unset !important ;
    -webkit-text-fill-color: #999999 !important;/*记住密码的字的颜色*/
    transition: background-color 5000s ease-in-out 0s;/*延时渲染背景色来去除背景色*/
    caret-color: #999999;/*光标颜色*/
}

input:focus {  /*外边框线去除*/
 outline: none; 
}

body{min-width: 300px;height: 100vh;}